USGS ecologist Jaimie Gillespie measuring a Sediment Elevation Table (SET) on the Pamunkey River, VA. This SET is part of a larger project which consists of two SETs at each of five research sites, on both the Mattaponi and Pamunkey Rivers spanning Oligahaline to non-tidal conditions.
Gregory Noe
Research Interests: Wetland ecosystem ecology, focusing on the interactive influences of hydrology, geomorphology, climate, and biology on nitrogen, phosphorus, carbon, and sediment biogeochemistry and transport in watersheds, as well as plant community ecology and restoration ecology.
Greg Noe has been a Research Ecologist with the U.S. Geological Survey in Reston, VA, since 2002, where he leads the Wetland Ecosystem Ecology & Biogeochemistry Laboratory (WEEBL) in the Florence Bascom Geoscience Center. Dr. Noe’s research centers on wetland ecosystem ecology and watershed processes. His dissertation research identified the complex controls on annual plant germination in the salt marshes of southern California. This was followed by post-doctoral research on phosphorus biogeochemistry and enrichment effects in the Florida Everglades. When joining the USGS, he started a research program on nutrient cycling, transport, and retention in wetlands associated with floodplains.
He is currently the Immediate Past President of the Society of Wetland Scientists, serves on the Science and Technical Advisory Committee of the Chesapeake Bay Program, serves on the editorial board of Wetlands and previously of Wetlands Ecology and Management, is the recipient of the President's Service Award from the Society of Wetland Scientists, and has served on the program committees of national and international scientific conferences and numerous graduate student committees. Greg is a recipient of the Meritorius Service Award from the Department of the Interior.
Current projects:
- Quantifying and modeling nutrient retention by riverine floodplains from site to watershed scales across the U.S.
- Evaluating the impacts of watershed restoration on water quality and stream health in the Chesapeake
- Identifying the effects of sea level rise, salinization, and sediment availability on tidal freshwater wetland ecosystem resilience along the Atlantic Coast
- Measuring the water quality functions in created wetlands, stream restoration projects, and floodplain restorations, and how to optimize their design
Science and Products
Leveraging Existing USGS Streamgage Data to Map Flood-Prone Areas
Leveraging Existing USGS Streamgage Data to Map Flood-Prone Areas
New study shows importance of streambank erosion and floodplain deposition on sediment, phosphorus, and nitrogen sources and transport in the Chesapeake watershed
New Review of Sediment Science Informs Choices of Management Actions in the Chesapeake
New information on chemical and physical characteristics of streams and floodplains across the Chesapeake Bay and Delaware River watersheds
Impacts of coastal and watershed changes on upper estuaries: causes and implications of wetland ecosystem transitions along the US Atlantic and Gulf Coasts
Type of Wetlands Affect How Much Nitrogen is Removed from the Bay’s Tidal Rivers
Assessing Effects of Sea-level Rise on Upstream Ecosystem Conditions
Quantifying Floodplain Ecological Processes and Ecosystem Services in the Delaware River Watershed
Fish communities in PA and MD Piedmont mixed agricultural streams, 2023
Macroinvertebrate communities in Shenandoah Valley streams, 2021
Simulated net primary productivity and greenhouse gas emissions under various soil salinity and water table depth combinations in low salinity tidal wetlands
Water quality and contaminants in stream surface waters collected in the Shenandoah Valley, 2021
Fish communities in Delmarva Peninsula streams, 2022
Delmarva Peninsula Stream Health and Habitat Assessments in Maryland and Delaware (2022)
Data of floodplain soil carbon and nutrient retention along a chronosequence of urban stream restorations in Northern Virginia (2022)
Data to support surface elevation change and vertical accretion data to support assessment of hummock formation/loss in tidal freshwater forested wetlands along the U.S. Atlantic coast (2009-2021)
Fish communities in Shenandoah Valley streams, 2021
Sediment model inputs and outputs for the Smith Creek watershed near New Market, Virginia for 2012-2016
Hydrogeomorphic data along transitioning Coastal Plain rivers (Mattaponi and Pamunkey Rivers): implications for a rising sea level
Modeling impacts of drought-induced salinity intrusion on carbon fluxes and storage in tidal freshwater forested wetlands
USGS ecologist Jaimie Gillespie measuring a Sediment Elevation Table (SET) on the Pamunkey River, VA. This SET is part of a larger project which consists of two SETs at each of five research sites, on both the Mattaponi and Pamunkey Rivers spanning Oligahaline to non-tidal conditions.
All tidal wetlands are blue carbon ecosystems
Saltwater intrusion and sea level rise threatens U.S. rural coastal landscapes and communities
Using local monitoring results to inform the Chesapeake Bay Program’s Watershed Model
The Coastal Carbon Library and Atlas: Open source soil data and tools supporting blue carbon research and policy
Practical guide to measuring wetland carbon pools and fluxes
Wetlands cover a small portion of the world, but have disproportionate influence on global carbon (C) sequestration, carbon dioxide and methane emissions, and aquatic C fluxes. However, the underlying biogeochemical processes that affect wetland C pools and fluxes are complex and dynamic, making measurements of wetland C challenging. Over decades of research, many observational, experimental, and
Mapping stream and floodplain geomorphometry with the Floodplain and Channel Evaluation Tool
Societal benefits of floodplains in the Chesapeake Bay and Delaware River watersheds: Sediment, nutrient, and flood regulation ecosystem services
Floodplains provide critical ecosystem services to people by regulating floodwaters and retaining sediments and nutrients. Geospatial analyses, field data collection, and modeling were integrated to quantify a portfolio of services that floodplains provide to downstream communities within the Chesapeake Bay and Delaware River watersheds. The portfolio of services included floodplain sediment and n
Soil salinity and water level interact to generate tipping points in low salinity tidal wetlands responding to climate change
Presence of hummock and hollow microtopography reflects shifting balances of shallow subsidence and root zone expansion along forested wetland river gradients
Hydrogeomorphic changes along mid-Atlantic coastal plain rivers transitioning from non-tidal to tidal: Implications for a rising sea level
Evaluation of management efforts to reduce nutrient and sediment contributions to the Chesapeake Bay estuary
Modeling impacts of saltwater intrusion on methane and nitrous oxide emissions in tidal forested wetlands
Floodplain and Channel Evaluation Tool (FACET)
The Floodplain and Evaluation Tool (FACET) is an open-source python tool that maps the floodplain extent and derives reach-scale summaries of stream and floodplain geomorphic measurements from high-resolution digital elevation models (DEMs).
Floodplain and Channel Evaluation Tool: FACET
Science and Products
- Science
Leveraging Existing USGS Streamgage Data to Map Flood-Prone Areas
We will develop reproducible workflows in R and Python to combine already existing and underutilized field data collected as part of the USGS streamgage network with remotely sensed data to map flood-prone areas for various recurrence intervals in both gaged and ungaged stream reaches.Leveraging Existing USGS Streamgage Data to Map Flood-Prone Areas
We will develop reproducible workflows in R and Python to combine already existing and underutilized field data collected as part of the USGS streamgage network with remotely sensed data to map flood-prone areas for various recurrence intervals in both gaged and ungaged stream reaches.New study shows importance of streambank erosion and floodplain deposition on sediment, phosphorus, and nitrogen sources and transport in the Chesapeake watershed
Issue: As Chesapeake Bay Program partners work to reduce pollution, knowing sources of sediment, phosphorus, and nitrogen transported to the Bay is critical for effective and efficient management. Streams and their associated floodplains have an important influence on the transport of nutrients and sediment through the Chesapeake watershed and into tidal waters. The USGS is conducting...New Review of Sediment Science Informs Choices of Management Actions in the Chesapeake
Issue: The Chesapeake Bay Program (CBP) is pursuing restoration efforts to improve habitats and associated water quality for fisheries, both in the watershed and estuary. Excess sediment decreases light in tidal waters for submerged aquatic vegetation, harms oysters, carries contaminants, and impairs stream health throughout the watershed. The CBP is implementing management actions and policies...New information on chemical and physical characteristics of streams and floodplains across the Chesapeake Bay and Delaware River watersheds
Issue: Improving stream health is an important outcome of the Chesapeake Bay Program partnership. Stream conditions are important for recreational fisheries, and mitigating the amount of nutrients, sediment, and contaminants delivered to the Bay.Impacts of coastal and watershed changes on upper estuaries: causes and implications of wetland ecosystem transitions along the US Atlantic and Gulf Coasts
Estuaries and their surrounding wetlands are coastal transition zones where freshwater rivers meet tidal seawater. As sea levels rise, tidal forces move saltier water farther upstream, extending into freshwater wetland areas. Human changes to the surrounding landscape may amplify the effects of this tidal extension, impacting the resiliency and function of the upper estuarine wetlands. One visible...Type of Wetlands Affect How Much Nitrogen is Removed from the Bay’s Tidal Rivers
Issue: Wetlands are important for removing nitrogen from rivers entering the Chesapeake Bay. More information is needed on how much nitrogen wetlands can remove.Assessing Effects of Sea-level Rise on Upstream Ecosystem Conditions
A synthesis published in Frontiers in Ecology and the Environment addresses what is known about the ecosystem consequences of freshwater tides extending upstream into formerly nontidal rivers. The USGS and its partners, with support from the Climate and Land Use Change Mission Area, published an article that summarizes the known effects of sea-level rise pushing freshwater tides upstream into...Quantifying Floodplain Ecological Processes and Ecosystem Services in the Delaware River Watershed
Floodplain and wetland areas provide critical ecosystem services to local and downstream communities by retaining sediments, nutrients, and floodwaters. The loss of floodplain functionality due to land use conversion and degradation reduces the provisioning of these services. Assessing, quantifying, and valuing floodplain ecosystem services provide a framework to estimate how floodplain systems... - Data
Filter Total Items: 26
Fish communities in PA and MD Piedmont mixed agricultural streams, 2023
From 2-27 June, 2023, a Virginia Tech team of 5 sampled the fish community in 30 Piedmont streams (lower Susquehanna River and upper Chesapeake Bay tributaries, Pennsylvania and Maryland, USA) spanning a gradient of agricultural intensity as part of a larger stream-health study including other teams who surveyed geomorphology, water quality, flow, temperature, and macroinvertebrates at the same 30Macroinvertebrate communities in Shenandoah Valley streams, 2021
From 20 May - 8 June 2021, a Virginia Tech team of 2-3 sampled the macroinvertebrate community in 30 Shenandoah Valley streams (Virginia and West Virginia, USA) as part of a larger stream-health study including other teams who surveyed geomorphology, water quality, flow, temperature,fish community, and fish health at the same 30 streams. The macroinvertebrate community team also characterized theSimulated net primary productivity and greenhouse gas emissions under various soil salinity and water table depth combinations in low salinity tidal wetlands
The dataset contains simulated net primary productivity (NPP) and greenhouse gas emissions (CH4, N2O, CO2) under a series of combinations of soil salinities (0.1, 0.5, 1, 2, 4, 6, 8, 10 psu) and water table depth (WTDs) (-30, -20, -10, -5, 0, 5, 10, 20, 30 cm) for tidal forest and oligohaline marsh sites along the Savannah River and Waccamaw River, USA.Water quality and contaminants in stream surface waters collected in the Shenandoah Valley, 2021
The data presented in this data release includes 11 field/water quality parameters, concentrations of 16 nutrients/anions, dissolved organic carbon, 14 organic contaminants, net estrogenicity concentrations, and 51 inorganic constituents in surface water collected twice from 28 stream sites and collected once from 2 stream sites in the Shenandoah Valley (Virginia and West Virginia, USA), in the suFish communities in Delmarva Peninsula streams, 2022
From 31 May to 29 June, 2022, a Virginia Tech team of 4-5 sampled the fish community in 30 Delmarva Peninsula streams (Maryland and Delaware, USA) as part of a larger stream-health study including other teams who surveyed geomorphology, water quality, flow, temperature, macroinvertebrates, and fish health at the same 30 streams. These 30 Chesapeake Bay Watershed tributaries had upstream drainage aDelmarva Peninsula Stream Health and Habitat Assessments in Maryland and Delaware (2022)
U. S. Geological Survey (USGS) scientists completed a data collection campaign from the 25th of April to the 10th of June in 2022, using various methods to record geomorphic and habitat indicators throughout 30 streams on the Delmarva Peninsula. Field methods included GNSS surveys, gravelometer-based pebble count readings, visual assessments, and riparian analyses. This metadata record contains alData of floodplain soil carbon and nutrient retention along a chronosequence of urban stream restorations in Northern Virginia (2022)
Floodplain surficial soil samples (10 cm depth) were collected from 18 streams in the urbanized Piedmont region of northern Virginia, representing a chronosequence of time (1-10 yrs.) since stream restoration as well as unrestored and reference streams. The samples were analyzed for total carbon (TC), total nitrogen (TN) and total phosphorus (TP) storage, whereas CO2 mineralization potential and eData to support surface elevation change and vertical accretion data to support assessment of hummock formation/loss in tidal freshwater forested wetlands along the U.S. Atlantic coast (2009-2021)
This study evaluated surface elevation change and vertical accretion of sediments in hollows and on top of hummocks associated with the base of tree stems in tidal freshwater forested wetlands. Sites were along a gradient of habitat change from freshwater forest to marsh and tracked hollow subsidence and in-filling with transgression over 6 (Virginia) to 12 (South Carolina/Georgia) years. Both deeFish communities in Shenandoah Valley streams, 2021
From 16 June to 30 July, 2021, a Virginia Tech team of 4-6 sampled the fish community in 30 Shenandoah Valley streams (Virginia and West Virginia, USA) as part of a larger stream-health study including other teams who surveyed geomorphology, water quality, flow, temperature, macroinvertebrates, and fish health at the same 30 streams. The fish community team also sampled three additional bonus streSediment model inputs and outputs for the Smith Creek watershed near New Market, Virginia for 2012-2016
This data release includes data created, collected, and/or otherwise modified in the process of quantifying a sediment budget for the Smith Creek Watershed near New Market, Virginia, USA. Five raster files are included, namely a modeled index of hydrological connectivity, a raster model of modeled floodplain depositional masses and extent, a rasters of modeled gross and delivered upland erosion, aHydrogeomorphic data along transitioning Coastal Plain rivers (Mattaponi and Pamunkey Rivers): implications for a rising sea level
Data on changing hydrogeomorphic characteristics along river gradients from nontidal through tidal freshwater to oligohaline reaches along the Mattaponi and Pamunkey Rivers, Virginia. Shapefile data include location and elevation profiles of the river valleys along multiple digital cross-sections from lidar digital elevation models, satellite visible imagery, and geographic information system analModeling impacts of drought-induced salinity intrusion on carbon fluxes and storage in tidal freshwater forested wetlands
A biogeochemistry model was developed to examine plant gross primary productivity (GPP), net primary productivity (NPP), plant respiration, soil respiration, soil organic carbon sequestration rate and storage under scenarios of drought and normal conditions at Tidal Freshwater Forested Wetlands (TFFW) sites along the Waccamaw River and Savannah River in the Southeastern United States. - Multimedia
USGS ecologist Jaimie Gillespie measuring a Sediment Elevation TableUSGS ecologist Jaimie Gillespie measuring a Sediment Elevation Table
USGS ecologist Jaimie Gillespie measuring a Sediment Elevation Table (SET) on the Pamunkey River, VA. This SET is part of a larger project which consists of two SETs at each of five research sites, on both the Mattaponi and Pamunkey Rivers spanning Oligahaline to non-tidal conditions.
USGS ecologist Jaimie Gillespie measuring a Sediment Elevation Table (SET) on the Pamunkey River, VA. This SET is part of a larger project which consists of two SETs at each of five research sites, on both the Mattaponi and Pamunkey Rivers spanning Oligahaline to non-tidal conditions.
- Publications
Filter Total Items: 56
All tidal wetlands are blue carbon ecosystems
Managing coastal wetlands is one of the most promising activities to reduce atmospheric greenhouse gases, and it also contributes to meeting the United Nations Sustainable Development Goals. One of the options is through blue carbon projects, in which mangroves, saltmarshes, and seagrass are managed to increase carbon sequestration and reduce greenhouse gas emissions. However, other tidal wetlandsAuthorsMaria Fernanda Adame, Jeffrey Kelleway, Ken Krauss, Catherine E. Lovelock, Janine B. Adams, Stacey M. Trevathan-Tackett, Gregory B. Noe, Luke Jeffrey, Mike Ronan, Maria Zann, Paul E. Carnell, Naima Iram, Damien T. Maher, Daniel Murdiyarso, Sigit D. Sasmito, Da B. Tran, Paul Dargusch, J. Boone Kauffman, Laura S. BrophySaltwater intrusion and sea level rise threatens U.S. rural coastal landscapes and communities
The United States (U.S.) coastal plain is subject to rising sea levels, land subsidence, more severe coastal storms, and more intense droughts. These changes lead to inputs of marine salts into freshwater-dependent coastal systems, creating saltwater intrusion. The penetration of salinity into the coastal interior is exacerbated by groundwater extraction and the high density of agricultural canalsAuthorsKiera O'Donnell, Emily S. Bernhardt, Xi Yang, Ryan Emanuel, Marcelo Ardon, Manuel Lerdau, Alex Manda, Anna Braswell, Todd BenDor, Eric Edwards, Elizabeth Frankenberg, Ashley Helton, John Kominoski, Amy Lesen, Lindsay Naylor, Gregory B. Noe, Kate Tully, Elliott White, Justin WrightUsing local monitoring results to inform the Chesapeake Bay Program’s Watershed Model
The Chesapeake Bay Program’s Watershed Model (CBWM) has been used as an accounting tool for the Chesapeake Bay Total Maximum Daily Load (TMDL). However, some of the fundamental parameters that underpin the watershed model may not represent local watershed characteristics at all scales. Significant investments have been made by state and local governments, and other local stakeholders, who are intAuthorsKarl Berger, Katherine C. Filippino, Gary W. Shenk, Normand Goulet, Michael Lookenbill, Doug L. Moyer, Gregory B. Noe, Aaron J. Porter, James Shallenberger, Bryant Thomas, Guido YactayoThe Coastal Carbon Library and Atlas: Open source soil data and tools supporting blue carbon research and policy
Quantifying carbon fluxes into and out of coastal soils is critical to meeting greenhouse gas reduction and coastal resiliency goals. Numerous ‘blue carbon’ studies have generated, or benefitted from, synthetic datasets. However, the community those efforts inspired does not have a centralized, standardized database of disaggregated data used to estimate carbon stocks and fluxes. In this paper, weAuthorsJames R. Holmquist, David H. Klinges, Michael Lonneman, Jaxine Wolfe, Brandon M. Boyd, Meagan J. Eagle, Jonathan Sanderman, Katherine Todd-Brown, Lauren N. Brown, E. Fay Belshe, Samantha K. Chapman, Ron Corstanje, Christopher N. Janousek, James T. Morris, Gregory B. Noe, Andre S. Rovai, Amanda C. Spivak, Megan Vahsen, Lisamarie Windham-Myers, Kevin D. Kroeger, Patrick MegonigalPractical guide to measuring wetland carbon pools and fluxes
Wetlands cover a small portion of the world, but have disproportionate influence on global carbon (C) sequestration, carbon dioxide and methane emissions, and aquatic C fluxes. However, the underlying biogeochemical processes that affect wetland C pools and fluxes are complex and dynamic, making measurements of wetland C challenging. Over decades of research, many observational, experimental, and
AuthorsSheel Bansal, Irena F. Creed, Brian Tangen, Scott D. Bridgham, Ankur R. Desai, Ken Krauss, Scott C Neubauer, Gregory B. Noe, Donald O. Rosenberry, Carl C. Trettin, Kimberly Wickland, Scott T. Allen, Ariane Arias-Ortiz, Anna R. Armitage, Dennis Baldocchi, Kakoli Banerjee, David Bastviken, Peter Berg, Matthew J. Bogard, Alex T. Chow, William H. Conner, Christopher Craft, Courtney Creamer, Tonya Delsontro, Jamie Duberstein, Meagan J. Eagle, M. Siobhan Fennessey, Sarah A. Finkelstein, Mathias Goeckede, Sabine Grunwald, Meghan Halibisky, Ellen R. Herbert, Mohammad Jahangir, Olivia Johnson, Miriam C. Jones, Jeffrey Kelleway, Sarah Knox, Kevin D. Kroeger, Kevin Kuehn, David Lobb, Amanda Loder, Shizhou Ma, Damien Maher, Gavin McNicol, Jacob Meier, Beth A. Middleton, Christopher T. Mills, Purbasha Mistry, Abhijith Mitra, Courtney Mobilian, Amanda M. Nahlik, Sue Newman, Jessica O'Connell, Patty Oikawa, Max Post van der Burg, Charles A Schutte, Chanchung Song, Camille Stagg, Jessica Turner, Rodrigo Vargas, Mark Waldrop, Markus Wallin, Zhaohui Aleck Wang, Eric Ward, Debra A. Willard, Stephanie A. Yarwood, Xiaoyan ZhuByEcosystems Mission Area, Water Resources Mission Area, Florence Bascom Geoscience Center, Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center, Northern Prairie Wildlife Research Center, Wetland and Aquatic Research Center , Woods Hole Coastal and Marine Science CenterMapping stream and floodplain geomorphometry with the Floodplain and Channel Evaluation Tool
Broad-scale mapping of stream channel and floodplain geomorphic metrics is critical to improve the understanding of geomorphic change, biogeochemical processes, riverine habitat quality, and opportunities for management intervention. The Floodplain and Channel Evaluation Tool (FACET) was developed to provide an open-source tool for automated processing of digital elevation models (DEMs) to generatAuthorsKristina G. Hopkins, Labeeb Ahmed, Peter R. Claggett, Samuel Lamont, Marina Metes, Gregory B. NoeSocietal benefits of floodplains in the Chesapeake Bay and Delaware River watersheds: Sediment, nutrient, and flood regulation ecosystem services
Floodplains provide critical ecosystem services to people by regulating floodwaters and retaining sediments and nutrients. Geospatial analyses, field data collection, and modeling were integrated to quantify a portfolio of services that floodplains provide to downstream communities within the Chesapeake Bay and Delaware River watersheds. The portfolio of services included floodplain sediment and n
AuthorsKristina G. Hopkins, Jacqueline Sage Welles, Emily J. Pindilli, Gregory B. Noe, Peter Claggett, Labeeb Ahmed, Marina MetesSoil salinity and water level interact to generate tipping points in low salinity tidal wetlands responding to climate change
Low salinity tidal wetlands (LSTW) are vulnerable to sea level rise and saltwater intrusion, thus their carbon sequestration capacity is threatened. However, the thresholds of rapid changes in carbon dynamics and biogeochemical processes in LSTW due to changes in hydroperiod and salinity regime remain unclear. In this study, we examined the effects of soil porewater salinity and water level on chaAuthorsHongqing Wang, Ken Krauss, Gregory B. Noe, Zhaohua Dai, Carl C. TrettinPresence of hummock and hollow microtopography reflects shifting balances of shallow subsidence and root zone expansion along forested wetland river gradients
Tidal freshwater forested wetlands (TFFWs) are in an active phase of transition to tidal marsh with sea level rise and salinity incursion along the Atlantic and Gulf Coasts of the United States (U.S.). A prominent feature of TFFWs is hummock/hollow microtopography where hollows represent the flat, base-elevation of the floodplain where inundation occurs relatively frequently, while hummocks providAuthorsKen Krauss, Gregory B. Noe, Jamie A. Duberstein, Nicole Cormier, Andrew From, Tom Doody, William H. Conner, Donald Cahoon, Darren JohnsonHydrogeomorphic changes along mid-Atlantic coastal plain rivers transitioning from non-tidal to tidal: Implications for a rising sea level
Sea level rise is affecting reaches of coastal rivers by increasing water levels and propagating tides inland. The transition of river systems into tidal estuaries has been neglected in hydrogeomorphic studies. A better understanding of transitioning reaches is critical to understanding ecosystem dynamics, services, and developing predictive capabilities of change as sea levels rise. We hypothesizAuthorsDaniel Kroes, Gregory B. Noe, Cliff R. Hupp, Tom Doody, P.A. BukaveckasEvaluation of management efforts to reduce nutrient and sediment contributions to the Chesapeake Bay estuary
No abstract available.AuthorsZ. Easton, K. Stephenson, B. Benham, John K. Böhlke, A. Buda, A. Collick, L. Fowler, E. Gilinsky, C. Hershner, Andrew Miller, Gregory B. Noe, L. Palm-Forster, T. ThompsonModeling impacts of saltwater intrusion on methane and nitrous oxide emissions in tidal forested wetlands
Emissions of methane (CH4) and nitrous oxide (N2O) from soils to the atmosphere can offset the benefits of carbon sequestration for climate change mitigation. While past study has suggested that both CH4 and N2O emissions from tidal freshwater forested wetlands (TFFW) are generally low, the impacts of coastal droughts and drought-induced saltwater intrusion on CH4 and N2O emissions remain unclear.AuthorsHongqing Wang, Zhaohua Dai, Ken Krauss, Carl C. Trettin, Gregory B. Noe, Andrew J. Burton, Eric Ward - Software
Floodplain and Channel Evaluation Tool (FACET)
The Floodplain and Evaluation Tool (FACET) is an open-source python tool that maps the floodplain extent and derives reach-scale summaries of stream and floodplain geomorphic measurements from high-resolution digital elevation models (DEMs).
Floodplain and Channel Evaluation Tool: FACET
FACET is a Python tool that uses open source modules to map the floodplain extent and derive reach-scale summaries of stream and floodplain geomorphic measurements from high-resolution digital elevation models (DEMs). Geomorphic measurements include channel width, stream bank height, floodplain width, and stream slope. FACET allows the user to hydrologically condition the DEM, generate the stream - News